ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	$ 12,797
Other comprehensive income before reclassifications	323
Amounts reclassified from accumulated other comprehensive income	309
Net increase in other comprehensive income	632
Balance as of March 31, 2014	13,429
Accumulated Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	14,952
Other comprehensive income before reclassifications	323
Amounts reclassified from accumulated other comprehensive income	0
Net increase in other comprehensive income	323
Balance as of March 31, 2014	15,275
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	(2,153)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	(19)
Net increase in other comprehensive income	(19)
Balance as of March 31, 2014	(2,172)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	(2)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	328
Net increase in other comprehensive income	328
Balance as of March 31, 2014	$ 326